Hi Marc, > -----Original Message----- > From: Marc Zyngier [mailto:marc.zyngier@xxxxxxx] > Sent: Saturday, May 20, 2017 9:43 AM > To: Matthias Brugger <matthias.bgg@xxxxxxxxx> > Cc: Laurentiu Tudor <laurentiu.tudor@xxxxxxx>; gregkh@xxxxxxxxxxxxxxxxxxx; > stuyoder@xxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxx; arnd@xxxxxxxx; Ruxandra > Ioana Radulescu <ruxandra.radulescu@xxxxxxx>; Stuart Yoder > <stuart.yoder@xxxxxxx>; Roy Pledge <roy.pledge@xxxxxxx>; linux- > kernel@xxxxxxxxxxxxxxx; agraf@xxxxxxx; Catalin Horghidan > <catalin.horghidan@xxxxxxx>; Ioana Ciornei <ioana.ciornei@xxxxxxx>; > Thomas Gleixner <tglx@xxxxxxxxxxxxx>; Leo Li <leoyang.li@xxxxxxx>; Bharat > Bhushan <bharat.bhushan@xxxxxxx>; Jason Cooper <jason@xxxxxxxxxxxxxx>; > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; Rob Herring <robh+dt@xxxxxxxxxx> > Subject: Re: [PATCH 3/3][v4] staging: fsl-mc: move bus driver out of staging > Importance: High > > On Fri, May 19 2017 at 02:41:43 PM, Matthias Brugger > <matthias.bgg@xxxxxxxxx> wrote: > > On 19/05/17 15:13, laurentiu.tudor@xxxxxxx wrote: > >> From: Stuart Yoder <stuart.yoder@xxxxxxx> > >> > >> Move the source files out of staging into their final locations: > >> -include files in drivers/staging/fsl-mc/include go to include/linux/fsl > >> -irq-gic-v3-its-fsl-mc-msi.c goes to drivers/irqchip > > > > This driver has as compatible "arm,gic-v3-its". I wonder if this is > > correct and if it should be moved like this out of staging. > > This is no different from the way we handle *any* bus that uses the > GICv3 ITS as an MSI controller. Each bus provides its glue code that latches onto > the ITS node, and calls into the generic code. > > Now, when it comes to moving this out of staging, here is my concern: > There is mention of a userspace tool (restool) used to control the HW. Where is > this tool? Where is the user ABI documented? The tool is published here: https://github.com/qoriq-open-source/restool There are two ways of configuring the mc-bus: - a static one, through a FDT based configuration file (we call it DPL), documented in the refman linked below, chapter 22. - a dynamic one, using this restool utility. Please note the usage of restool is optional. The reference manual documenting the ABI can be found here (registration required): https://freescale.sdlproducts.com/LiveContent/content/en-US/QorIQ_SDK/GUID-53BEBDD8-1A5E-4DD0-8354-A9647AD35755 Click on the DPAA2 user manual link. We're also working on publishing the docs on github so that they're more accessible. --- Thanks & Best Regards, Laurentiu _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
